BSW Autohouse have a large stock of car batteries available for customers throughout County Down, including Newcastle, Dundrum and Castlewellan.
The main purpose of a battery is to start the engine, after that it is used to store energy provided by the alternator to meet the demands of different electrical systems in the car including the starter motor, lights and the ignition systems. Car batteries are usually lead-acid type and are made of six galvanic cells in series to provide a 12-volt system.


Common battery faults include:

  • Shorted cell due to failure of the separator between the positive and negative plates
  • Shorted cell or cells due to build up of shed plate material below the plates of the cell
  • Broken internal connections due to corrosion
  • Broken plates due to vibration and corrosion
  • Low electrolyte level
  • Cracked or broken case
  • Broken terminals
  • Sulfation after prolonged disuse in a low or zero charged state
  • Frequent and continuous overcharge

Looked after properly, the right battery for you vehicle should last 5 years. We recommend that you have your battery checked at least once a year.

Why not call into BSW Autohouse, where we can give your battery a free check and advise you on the correct battery choice for your car.